See part 15 in the diagram
Thermostat Fix
The WP3977749 is a thermostat fix for Whirlpool dryer. Basic tools needed. Compare prices from top sellers.
Replaces: 3977749, 4434218
Moderate Repair
Fits Whirlpool appliances
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4 stores · Updated May 15, 2026
Lowest$29.95
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$50.42
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Common Problems This Part Fixes
Not heating
Shuts off mid-cycle
Repair difficulty: Moderate - basic tools and 1-2 panels to remove
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